Serving uploaded media and media proxy from different domain

[seanking2919]

Following a recent security release, we're gonna add instructions and a recommendation to serve uploaded media and the media proxy from a different domain. See here: https://git.pleroma.social/pleroma/pleroma/-/merge_requests/3892

I don't know you folks would exactly handle it, but I do think there should be a way (or at least instructions on how) to do this with YunoHost.